<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        input{
            background-color: yellow;
        }
        input[type=button] {
            background-color: aqua;
        }
        input[class=one1]{
         background-color: tan;   
        }
    </style>
</head>
<body>
    <input type="text">
    <input type="text" class="one1">
    <input type="button">
    
</body>
</html>